WELL · 42-135-35484 · DISTRICT 8
Cowden -31- #1
Ector County · Cowden (Cisco) field · Vertical
Cowden -31- #1 (API 42-135-35484) is a plugged well in Ector County, plugged March 23, 1990, last operated by Bustamante Resources LLC.
The RRC has issued one drilling permit, issued March 3, 1987, permitted to 9,300 ft.
It was permitted by Baytech, Inc. and has since transferred to Bustamante Resources LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Wolfcamp, Pennsylvanian, Cisco.
Its lease has reported 54.2K barrels of oil and 19 mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Baytech, Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · (432) 664-1103
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bustamante Resources LLC |
| Production reports | Bustamante Resources LLCthrough Mar 2026 |
| Latest permit | Baytech, Inc.Mar 3, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,300
- total depth, ft
- 1
- permits on file
- Mar 3, 1987
- last permit issued
- May 5, 1987
- completed
- 54.2K
- cumulative oil, bbl
- 19
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 5, 1987
- Shut in
- —
- Plugged
- Mar 23, 1990
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cowden -31- O-10-31215 | Cowden (Cisco) | Bustamante Resources LLC | 2 | 54.2K | 19 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 102 · prior 12 72(+42%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Prime Operating CompanyJan 1993 → May 2023
- 2Bustamante Resources LLCJun 2023 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 326957-99 | Drill | Baytech, Inc. | Feb 23, 1987 | Mar 3, 1987 | — | 9,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-31215 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,040 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wolfcamp | 8,189 | -5,149 |
| PennsylvanianPENN DETRITAL | 8,352 | -5,312 |
| Cisco | 8,754 | -5,714 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,758 | 8,816 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 347 | 17.5 | 400 S |
| 9.625 | 4,323 | 12.5 | 1,400 S |
| 5.5 | 8,575 | 7.875 | 450 S |
| 4 | 8,988 | 5.5 | 175 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 27, 1987 | May 11, 1987 | Yes |
| 00 | May 21, 1987 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-135-35484 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-35484 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/13535484, documented in the API reference.